Geodetic aspects of the 19 May 2011 Simav earthquake in Turkey

Tiryakioğlu, İbrahim

doi:10.1080/19475705.2013.831379

Cited by 19 publications

(5 citation statements)

References 29 publications

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“…The use of CORS was also aimed at seismic displacement assessment operations, especially in the most geo-seismically active areas around the world, such as the South American plates [50], Chile and Mexico [51], Turkey [52][53][54], and the USA [55]. Another field of application of CORS concerns the investigation of ground deformations by analysing the estimated time series of velocity fields.…”

Section: Background Articles On Reference Frames and Structure Monito...mentioning

confidence: 99%

A Review of Selected Applications of GNSS CORS and Related Experiences at the University of Palermo (Italy)

Pipitone,

Maltese,

Lo Brutto

et al. 2023

Remote Sensing

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Services from the Continuously Operating Reference Stations (CORS) of the Global Navigation Satellite System (GNSS) provide data and insights to a range of research areas such as physical sciences, engineering, earth and planetary sciences, computer science, and environmental science. Even though these fields are varied, they are all linked through the GNSS operational application. GNSS CORS have historically been deployed for three-dimensional positioning but also for the establishment of local and global reference systems and the measurement of ionospheric and tropospheric errors. In addition to these studies, CORS is uncovering new, emerging scientific applications. These include real-time monitoring of land subsidence via network real-time kinematics (NRTK) or precise point positioning (PPP), structural health monitoring (SHM), earthquake and volcanology monitoring, GNSS reflectometry (GNSS-R) for mapping soil moisture content, precision farming with affordable receivers, and zenith total delay to aid hydrology and meteorology. The flexibility of CORS infrastructure and services has paved the way for new research areas. The aim of this study is to present a curated selection of scientific papers on prevalent topics such as network monitoring, reference frames, and structure monitoring (like dams), along with an evaluation of CORS performance. Concurrently, it reports on the scientific endeavours undertaken by the Geomatics Research Group at the University of Palermo in the realm of GNSS CORS over the past 15 years.

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Section: Background Articles On Reference Frames and Structure Monito...mentioning

confidence: 99%

A Review of Selected Applications of GNSS CORS and Related Experiences at the University of Palermo (Italy)

Pipitone,

Maltese,

Lo Brutto

et al. 2023

Remote Sensing

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“…Several studies were conducted about the origin and formation mechanism of this type of surface deformations observing along the border of the depression areas in western Anatolia [Gürsoy et al, 1997;Demirtaş et al, 2008;Koca et al, 2011;Tiryakioğlu et al, 2015;Tiryakioğlu et al, 2017b;Özkaymak et al, 2017;. Koca et al [2011] reported that the aseismic surface deformation on Sarıgöl district has been developing on the surface rupture of 1969 Alasehir Earthquake (Mw:6.9) occurred on Sarıgöl Fault Zone while Özkaymak et al [2019] reveal that the aseismic surface deformation on Bolvadin district has been developing on the past surface ruptures of active Bolvadin Fault by using trench-based palaeoseismological analyses.…”

Section: Field Observations On Aseismic Surface Deformations In Bolvadinmentioning

confidence: 99%

“…Knowledge of aseismic deformation on active faults has improved greatly over the past few decades because of the implementation of geodetic studies at active tectonics [Tiryakioğlu 2015;Tiryakioğlu and Bozkus, 2020;Poyraz et al 2019;Yavasoglu et al 2020]. Aseismic surface deformations occur as a result of substantial compaction of sediment due to groundwater withdrawal, partly microseismic activity, and tectonic creep [Özkaymak et al, 2019] have been observed in many places for 30 years in Western Anatolian.…”

Section: Introductionmentioning

confidence: 99%

The velocity of aseismic surface deformations between 2016‑2020 detected by precise leveling surveys of the Akşehir Simav Fault System in the Bolvadin district, western Anatolia

Tiryakioğlu¹,

ÇALIŞKAN²,

YIGIT³

et al. 2022

Annals of Geophysics

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In this research, the aim was to examine the aseismic surface deformations that occurred in the Bolvadin district center with a precise leveling technique. For this purpose, a geodetic leveling network consisting of eight profiles and 81 benchmarks was installed in the region, and five campaigns of precise leveling measurements were performed between 2016-2020. As a result of the evaluations of the leveling measurements, deformations over time were calculated at each benchmark. In consequence of the evaluation of the five campaign measurements, the deformation amount increased continuously from 2016 to 2020. When the adjusted height differences between 2019‑2020 were examined, it was observed that the deformation amount of the previous years doubled. Additionally, deformation rates between –20 and –90 mm/year were estimated using the Kalman filtering methods. According to the current data obtained, the total vertical displacement amount has reached approximately 1 m and the deformation continues today.

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“…GLOBK is used to estimate the velocities in the network. During the estimation of the six-parameter transformation, the generalized constraints were implemented; sixteen IGS network stations used for the stabilization process necessitated the determination of the velocity vectors of the sites [29,30]. The Cartesian coordinates and the time series of the sites in the test network were obtained at the end of the process (Table 2, Figure 3).…”

Section: Static Measurements and Analysismentioning

confidence: 99%

Examining the Accuracy of Network RTK and Long Base RTK Methods with Repetitive Measurements

et al. 2019

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Real-time kinematic (RTK) technique is important for mapping applications requiring short measure time, the distance between rover and base station, and high accuracy. There are several RTK methods used today such as the traditional RTK, long base RTK (LBRTK), network RTK (NRTK), and precise point positioning RTK (PPP-RTK). NRTK and LBRTK are popular with the advantage of the distance, the time, and accuracy. In the present study, the NRTK and LBRTK measurements were compared in terms of accuracy and distance in a test network with 6 sites that was established between 5 and 60 km. Repetitive NRTK and LBRTK measurements were performed on 6 different days in 2015-2017-2018 and additionally 4 campaigns of repetitive static measurements were carried out in this test network. The results of NRTK and LBRTK methods were examined and compared with all relevant aspects by considering the results of the static measurements as real coordinates. The study results showed that the LBRTK and NRTK methods yielded similar results at base lengths up to 40 km with the differences less than 3 cm horizontally and 4 cm vertically.

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Geodetic aspects of the 19 May 2011 Simav earthquake in Turkey

Cited by 19 publications

References 29 publications

A Review of Selected Applications of GNSS CORS and Related Experiences at the University of Palermo (Italy)

A Review of Selected Applications of GNSS CORS and Related Experiences at the University of Palermo (Italy)

The velocity of aseismic surface deformations between 2016‑2020 detected by precise leveling surveys of the Akşehir Simav Fault System in the Bolvadin district, western Anatolia

Examining the Accuracy of Network RTK and Long Base RTK Methods with Repetitive Measurements

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